目的 分析鼻骨骨折诊断使用普 通X线与CT诊断效果差异。方法 回顾性 分析我院2013年1月-2014年12月期间收 治100例鼻骨骨折且均接受普通X线和CT检 查患者影像学资料。分析两种方式影像情 况，比较两种方式骨折检出情况，骨折类 型检出情况以及诊断效能。结果 普通X线 显示患者鼻骨骨折处皮质有连续性中断， 部分患者还可观察到位移情况，但是同时 可见模糊骨折线；CT图像可以清晰观察到 鼻骨骨折处皮质有连续性中断以及位移， 还可清楚显示骨折线，同时CT图像还可以 观察到软组织部位肿胀发生情况以及血影 存在。CT诊断鼻骨骨折检出率(98.00%)显 著高于普通X线(54.00%)(P＜0.05)；CT对 于单纯型骨折、鼻中隔骨折、鼻骨汇合部 骨折和复合型骨折检出率高于普通X线， 两种方式对于鼻骨骨折类型检出率之间比 较差异显著(P＜0.05)，CT方式诊断鼻骨 骨折灵敏度和准确度显著高于普通X线(P ＜0.05)，特异度低于普通X线，但两种方 式之间差异不显著(P＞0.05)。结论 CT可 以有效提高鼻骨骨折检出率以及骨折类型 检出率，诊断效能较高。

Objective To analyze the diagnostic effects of common X-ray and CT on nasal bone fractures. Methods The imaging data of 100 patients with nasal bone fractures who were given X-ray and CT examinations from January 2013 to December 2014 in our hospital were retrospectively analyzed. The images of the two methods were analyzed, and fracture detection, types of fracture detection and diagnostic efficacy of the two methods were analyzed. Results Common X-ray showed there was continuous interruption of cortex in patients with nasal bone fractures, and there was also displacement in some patients but with blurred fracture lines. CT images could clearly observe the continuous interruption and displacement of cortex at nasal bone fractures, and could clearly display fracture line, and CT images could also observe the swelling of soft tissue and the presence of blood shadow. The detection rate of CT for nasal bone fractures was significantly higher than that of common X-ray (98.00% vs 54.00%) (P<0.05). The detection rates of CT for simple fracture, nasal septum fracture, nasal bone confluence fracture and composite fracture were higher than those of common X-ray, and there were significant differences in the detection rates of types of nasal bone fractures between the two methods (P<0.05), and the sensitivity and accuracy of CT in the diagnosis of nasal bone fractures were significantly higher than those of common X-ray (P<0.05) while the specificity was lower than that of common X-ray (P>0.05). Conclusion CT can effectively improve the detection rate of nasal bone fractures and the detection rates of fracture types, and it has high diagnostic efficacy.